Answer:
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Explanation:
ANSWER OF 1ST QUESTION -
1) it protects the nucleic acid from digestion by enzymes, 2) contains special sites on its surface that allow the virion to attach to a host cell, and 3) provides proteins that enable the virion to penetrate the host cell membrane and, in some cases, to inject the infectious nucleic .
ANSWER OF 2ND QUESTION -
Mutations can produce viruses with a reduced pathogenicity, altered host range, or altered target cell specificity but with intact antigenicity. Such viruses can sometimes be used as vaccine strains.
5×10
[tex]5 \times 10 = [/tex]
Answer:
5×10=50Explanation:
I hope l helped you. Please follow me. ❤❤❤What macromolecules in the plasma membrane are most directly responsible for transporting large.
polar molecules into or out of the cell?
carbohydrates
nucleic acids
phospholipids
proteins
Answer:
Proteins
Explanation:
There are proteins in the membrane that have channels for large polar molecules to move into or out of the cell since the plasma membrane is made of a phospholipid bilayer where the inside is non polar. This means large polar molecules need help from proteins to cross the plasma membrane.
Put the steps ol enzyme activity in order from first to last using the drop down menu beside each step.
* The chemical reaction occurs.
A substrate enters the active site of
enzyme.
New substances called "products" are formed.
- The enzyme and the substrate bind to form the enzyme-substrate complex.
The steps of enzyme activity in order is:
A substrate enters the active site of enzyme.The enzyme and the substrate bind to form the enzyme substrate complex.The chemical reaction occurs.New substance called product is formed.What is enzyme substrate complex?
When an enzyme binds to its substrate, an enzyme-substrate complex is formed. The activation energy of the reaction is reduced, and the reaction proceeds more rapidly thanks to the complex's provision of certain ions or chemical groups that actually form covalent bonds with molecules at a vital point of the reaction process.
A non-covalent structure where the active site of an enzyme is connected to a substrate. Supplement. The complex of the enzyme and substrate is produced during a chemical process.
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( Need ASAP!!) Which of the following statements best demonstrates that gene expression is regulated?
F. Cells protect their DNA by enveloping it in a nucleus.
G. Cells do not transcribe all of their genes all of the time.
H. Each cell has an exact copy of all DNA.
3. Each tRNA has a specific amino acid that it carries.
Answer:
Explanation:
hi
Regulation of gene expression involves process by which a cell determines which genes, among the numerous genes in its genetic make-up, are "switched on" (expressed).
The option that demonstrate that gene expression is regulated is that Cells do not transcribe all of their genes all of the time.
In eukaryotes, regulation of gene expression can take place at various points. This might include post transcriptional and post-translational modifications. This mechanism ensures to control some various processes which include:
When a gene is expressed to produce RNA and protein,Amount of the protein is produced, And when the protein is no longer required.Learn more about gene expression: https://brainly.com/question/25703686
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Answer:
true
Explanation:
-1- Lipids cannot be considered polymers because
Answer:
Lipids cannot be considered polymers because, unlike carbohydrates, they are constituted of several units that are different.
Explanation:
Unlike other biomolecules —such as carbohydrates, proteins and nucleic acids— lipids are not considered polymers because the subunits that form them are different, in addition to being made up of a larger molecule, from which they can grow.
Polymers are formed by repeating subunits, having the possibility of forming and growing at either end of their chain. Polymerization is a characteristic shared by carbohydrates, proteins and nucleic acids, but not by lipids.
Lipids are biomolecules of hydrophobic nature formed predominantly by carbon and hydrogen, whose structure can be linear or forming rings. They have biological importance as they are the main component of cell membranes, reserve energy substrate and form molecules such as hormones.
PPE works by creating a barrier between the healthcare worker and the ___c___.
A. Infectious material
B. Sample
C. PPE
D. Sharps container
Please help! I’ll mark brainliest
Answer:
heterozygous
Explanation:
i might be wrong
Answer: Cannot tell- Not enough information provided
Explanation: We know for certain the son is NOT ww because the son has the dominant trait for the widow's peak. Both the parents are Ww because their daughter lacks a widow's peak, which means they both must carry the recessive gene. If we conduct a Punnett Square with the parents genotypes which are both Ww, the son has a 25% chance to be WW, and a 50% to be Ww and a 25% chance to be ww (which he is not since he has a widow peak!). The son could be WW or Ww. In order to find out which genotype the son has, we'd have to look as his offspring!
I hope this helps!!
what is the key factor in determining the habitable zone of a planet
Answer:
The key factor in determining the habitable zone of a planet is looking for a Earth-like planet that is able to have water on it's surface, and make sure that it can still give or support life.
Hope this helps!
Answer:
Ability of water to be liquid.
Explanation:
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Which of the following organelles would not be present in the nerve cell of the humpback whale?
A. Plasma membrane
B. Cell wall
C. Mitochondria
D. Lysosome
Answer: b
Explanation:
Which of the following statements supports the idea from the Cell Theory?
A. An E. coll cell divides in half, forming two new cells..
C. A paramedum breaks down organic matter to live.
D. Unicellular bacteria respond to stimulus.
E. Yeast are living organisms that metabolize sugar.
The correct answer among the given statements is option A. An E.coli cell divides into two new cells, according to the cell theory.
Theodor Schwann introduced the traditional cell hypothesis/cell theory in 1839. This theory has three components. Cells make up all living things, according to the first section. Cells are the essential building blocks of life, according to the second section. The third section states that cells are descended from earlier, already existent cells that have proliferated. One of the fundamental ideas in biology is the concept of the cell/cell theory. A suggested and commonly recognized hypothesis of how the majority life on Earth operates is called the cell theory. There are following tenets of the Cell hypothesis.
1) Cells make up all living things.
2) Other living cells make all of the current cells.
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1) Propose an idea for an organic Asian or Hispanic food offering...
Organic Asian or Hispanic food that could be could be offered at the international section or aisle of a grocery store could be condiments, sauces, dry and packaged noodles, etc.
Condiments: Asians are known for their condiments that are flavor-bombs and pair really well with the main course.Sauces/ Curry pastes/ spices: They're authentic to the lands of Asia and offer that organic touch to the food that Asians look for in a foreign land. They elevate the taste of the dishes they're added to. Examples of condiments and sauces include soy, teriyaki, siracha, gochujang, chili sauce, fish sauce, oyster sauce etc.Spices like galangal, kaffir lime, lemongrass, turmeric, ginger etc. Dry and packaged noodles: What is Asian cuisine without it's noodles? Glass noodles, rice noodles, vermicelli noodles etc. Moreover, Asian ramen has a far superior taste than any other.Hence, the examples mentioned above can be a good addition to the grocery store offering Asian food supplies.
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mRNA sequence is mutated from CCC GGG to CCG GGG. What type of mutation occurred? Select all that apply.
point mutation
silent mutation
indel
insertion
deletion
missense
nonsense mutation
Answer:
point mutation and silent mutation
Explanation:
the third cytosine is mutated to guanine => point mutationCCC codes for proline and so does CCGmRNA sequence is mutated from CCC GGG to CCG GGG as it is the point mutation and silent mutation and the third cytosine is mutated to guanine => point mutation CCC codes for proline and so does CCG it has been observed in the medicines too.
What is Regenerative medicine?Regenerative medicine has focused on growing specialized tissues for spinal cord injuries, diabetes, cancer, multiple sclerosis, Parkinson’s disease, and many other currently un thought-of applications.
Regenerative medicine has been defined as the branch of translational research in tissue engineering and molecular biology that deals with replacing, engineering or replace human or animal cells, tissues or organs to restore normal functioning. It also develops method to regrow, repair or replace damaged or diseased cells, organs or tissues.
Therefore, mRNA sequence is mutated from CCC GGG to CCG GGG as it is the point mutation and silent mutation and the third cytosine is mutated to guanine => point mutation CCC codes for proline and so does CCG it has been observed in the medicines too.
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The DNA found in most bacterial cells
Answer:
bacterial chromosome
What is the minimum internal temperature for holding hot food to
prevent harmful food borne pathogens from multiplying?
Mad cow disease is caused by deformed proteins called prions. The disease is spread when meat from an infected cow is eaten. Prions can cause normal proteins to become deformed, producing more prions. After a few years, the brain of an infected person or cow looks like a sponge full of holes. Are prions considered organisms?
Group of answer choices
Yes, because they can cause disease
No, because they can’t make their own food
No, because they are not made of cells
Yes, because they can make more of themselves
Answer:
D - Yes, because they can make more of themselves
Explanation:
A simple search online told me that they were organisms.
In your own words, explain why an organism would require all four of the main biomolecules. What would occur if any of these biomolecules were missing? Are any of the biomolecules more important than the others? Is there one that we could live without?
Answer:
An organism requires all four main biomolecules because each provides a specific and necessary function for the organism. None of the biomolecules is more important than another, and if any of them were missing, life would not be possible.
Explanation:
The main biomolecules of living beings are carbohydrates, proteins, lipids and nucleic acids, each with a specific function and necessary for the development of life.
The presence of these four biomolecules is necessary because each one fulfills specific and irreplaceable functions, such as:
Carbohydrates: are the main source of energy, forming part of organic biomolecules such as glycolipids, glycoproteins or sugars that form the structure of nucleic acids.Proteins: important for their structural function and for molecules such as enzymes, which contribute to organic functions. They are also part of the cell membranes.Lipids: are the molecules that predominantly form the cell membranes. Additionally, they form functional molecules, such as hormones, and are a reserve energy source.Nucleic acids: DNA and RNA are not only necessary for organic biosynthesis, but also determine the structure and function of each organism. The reproductive and perpetuation function of the species is based on the transfer of genetic material contained in the DNA to the offspring.What would occur if any of these biomolecules were missing?If one of the main biomolecules were missing, the function it provides could not be supplied by another, which would imply the non-viability of a living being. If carbohydrates are missing there is no source of energy, without proteins there would be no tissues like muscle and no enzymes to facilitate organic reactions and without lipids there would be no cells. The absence of nucleic acids, per se, would determine the impossibility of all organic processes.
Are any of the biomolecules more important than the others?No one biomolecule is more important than another. Each one of them fulfills a specific and necessary function that cannot be supplied by another biomolecule.
Is there one that we could live without?All organic molecules are necessary, fulfilling an important function. The lack of any biomolecule in the organism is incompatible with life.
An organism requires all four of the main biomolecules because they're all important for the effective functioning of the organism.
It should be noted that the main biomolecules include protein, lipid, carbohydrates, and nucleic acids. They all play a vital role in how an organism functions.
If any of these biomolecules were missing, the function that can be provided by the biomolecule can't be provided by another biomolecule since they all play different roles. Also, there's no biomolecule that's important than another.
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Select statements true of fracture zones.
Select statements true of fracture zones. Choose one or more:
A. Earthquakes can occur along fracture zones.
B. Fracture zones are situated perpendicular to mid-ocean ridge segments. C. New crust is formed via seafloor spreading along fracture zones.
D. Fracture zones can act as transform boundaries between two actively spreading ridge segments.
Fracture zones are situated perpendicular to mid-ocean ridge segments.
What are fracture zones?Fracture zones are a consequence of plate tectonics, they are an oceanic feature that is linear and sometimes travels thousands of kilometers due to the action of displaced mid-oceanic ridge axis segments. These zones are seismically inactive since the two fracture zones move in the same direction.
These fracture zones are important since by studying them it is possible to determine the direction and speed that their movements can have.
Therefore, we can confirm that fracture zones are situated perpendicular to mid-ocean ridge segments.
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A ball moves in a circle at the end of a string, as shown.
An illustration of a circle with an arrowhead on the circle pointing clockwise. A black dot on the top left part of the circle is a dot with 4 vectors from it. Vector Z away from the center of the circle, vector Y toward the center of the circle, a vector tangent to the circle and clockwise labeled W and a vector labeled X along the circle and in the clockwise direction.
Which arrow represents the centripetal force responsible for this motion?
W
X
Y
Z
Answer:
The Answer is Y
Explanation:
Y is the arrow pointing towards the center of the circle and the centripetal force always goes toward the center of the circle.
The arrow that represents the centripetal force responsible for this motion is : Arrow Y
Direction of arrow YArrow Y points towards the center of the circle which is the same direction as the centripetal force acting on body whcih follows a curved path. centripetal force moves to the center of the circle ( i.e circular path ) of the object.
Hence we can conclude that the arrow that represents the centrpetal force responsible for this motion is Y
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Through which process do producers make food
Answer:photosynthesis
Explanation:
if work,mark brainilest-_-
Answer:Producers make food for the rest of the ecosystem through the process of photosynthesis, where the energy of the sun is used to convert carbon dioxide and water into glucose
Biology enzymes! Help me somebody please. Am I correct?
I am almost positive you messed up a squeeze, so see how it is in the 4? Well that may mean it's 4, then the 5 is measured by the smaller line going before the 6.
Most of the cells in your body are ______ cells.
somatic
haploid
germ
gamete
Answer:
somatic
Explanation:
because it means body cells :)
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Can someone please help me with just 2 questions? I’m giving a lot of points and making brainiest!
Answer:
1. A hypothesis is an assumption made before any research has been done. It is formed so that it can be tested to see if it might be true. While, a theory is a principle formed to explain the things already shown in data.
2. A possible hypothesis is that the mold growing on one side of the bread is having a different and more exposure to the external environment or the atmosphere.
Hope these help.One coastal cholla cactus can house the nest of the cactus wren containing two adults and up to five young and provide food for their life time. Six cholla cactus are counted in a study area. What is the maximum carrying capcity of wrens in the study area?
Question 4 options:
42
12
7
1
The maximum carrying capcity of wrens in the study area is 42 wrens.
So, the correct option is 42.
A species of wren unique to the deserts of the southwestern United States and northern and central Mexico is the cactus wren. Its brown feathers are marked with black and white dots. It has a recognisable white eyebrow that extends all the way down to the nape of the neck.Arizona's state bird is a cactus wren. Due to its upward-pointing tail and darting flight, the wren is easily identified. Due to its small size and brown colouring, the wren is a challenging bird to identify. They are naturally reserved and shy. The best approach to locate one is to pay attention to its obnoxious melodic trills and chastising clicks.To learn more about cactus wren.
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Which main tissue type is shown in the picture?
connective
muscle
nervous
epithelial
Answer:
muscle
Explanation:
i think its muscle.
Which statement best explains one way CO2 is naturally removed from the atmosphere?
Answer:
Photosynthesis is the process that removes carbon dioxide from the Earth's atmosphere.
Explanation:
One way CO2 is naturally removed from the atmosphere is photosynthesis. Details about photosynthesis is given below.
What is photosynthesis?Photosynthesis is the process by which green plants obtain their nutrition using sunlight as an energy source.
Photosynthesis combines carbon dioxide and water in the chloroplast of plant cells to synthesize glucose molecules.
The atmospheric carbon dioxide gets into the plant via the stomata on the leaves.
Therefore, One way CO2 is naturally removed from the atmosphere is photosynthesis.
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how many moles are in 17.13g of MgO
Answer:
0.4250 mol MgO
General Formulas and Concepts:
Chemistry - Atomic Structure
Reading a Periodic TableUsing Dimensional AnalysisExplanation:
Step 1: Define
17.13 g MgO
Step 2: Identify Conversions
Molar Mass of Mg - 24.31 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of MgO - 24.31 + 16.00 = 40.31 g/mol
Step 3: Convert
[tex]17.13 \ g \ MgO(\frac{1 \ mol \ MgO}{40.31 \ g \ MgO} )[/tex] = 0.424957 mol MgO
Step 4: Check
We are given 4 sig figs. Follow sig fig rules and round.
0.424957 mol MgO ≈ 0.4250 mol MgO
Which statement describes what happens to the carbon dioxide produced in cellular respiration?
O It is broken down to get oxygen.
O. It is used to produce glucose.
O It is used to store energy.
O It is breathed out.
Which of the following is the best example of metabolism?
Question 1 options:
Otters need to take in more calories than similarly sized land mammals in order to generate enough body heat to combat cold waters.
A fertilized egg develops into specialized tissues as an adult.
A bacterial cell divides into 2 new identical cells.
Your kidneys filter extra water out of your bloodstream to lower blood pressure.
options: 1 is right for metabolism that Otters need to take in more calories than similarly sized land mammals in order to generate enough body heat to combat cold waters.
Metabolism is the process by which of your body converts what you eat and drink into the form of energy. During this complex process, the calories in food and beverages are combined with oxygen to release the energy that your body needs to be function. The chemical changes that take place in a cell or an in the organism. These changes make energy and the materials cells and the organisms need to grow, they reproduce, and stay healthy. Metabolism also helps you get rid of the toxic substances.
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